Wirt writ:

>(This 10 to 3 ratio of powers works reasonably well because 
>the log base 10 of 2 is 0.30103, which is close enough to 3 
>for government work).

I know government work is not too precise, but a 90% tolerance 
(.3 to 3) seems overly large to me. :-)

Jim Phillips                            Manager of Information Systems
E-Mail: [log in to unmask]      Therm-O-Link, Inc.
Phone: (330) 527-2124                   P. O. Box 285
  Fax: (330) 527-2123                   Garrettsville, Ohio  44231